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Prof. Daham Jayawardana

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Prof. Daham Jayawardana

Prof. Daham Jayawardana
Professor and Department Head
Professor in Geology,
B.Sc. (Geology Sp., Peradeniya) M.Sc., Ph.D. (Environmental Geochemistry, Shimane)
Department of Forestry and Environmental Science,
University of Sri Jayewardenepura, Sri Lanka

Email:
daham@sci.sjp.ac.lk
daham@sjp.ac.lk
tarangaj@gmail.com

google scholar profile
Research interest :

Geology, Soil Science, Trace Element Mobility in Water and Soil, Geographical Information System.

CV:

Educational Qualification

B.Sc. Special Degree in Geology (2005), University of Peradeniya, Sri Lanka.
M.Sc. in Environmental Geology (2006 – 2008), University of Shimane, Japan.
D.Sc. in Environmental Geology (2008 – 2011), University of Shimane, Japan.

PUBLICATIONS

Science Citation Expanded Journal Publications

  • Matharage, H., Jayaweera, M., Bandara N.J.G.J., Jayawardana, D. T., Zoysa, K., 2023. Occurrence, persistence, and ecological risk of bisphenol an in surface water receiving raw leachate from a municipal solid waste open dump in Kerawalapitiya, Sri Lanka. Environmental Quality Management 34, (accepted).
  • Herath, P.L., Buddhima, S., Gunathilake, B.M., Jayawardana, D. T., Bandara N.J.G.J., 2023, Annual fluctuation of gas concentration within the landfill surface layer in a tropical climate: A case study of a municipal wasteyard. Environmental Quality Management 34, (in press).
  • Herath, P.L., Jayawardana, D. T., Bandara N.J.G.J., 2023, Surface emission determination of selected trace gases from an active municipal solid waste dumpsite under the surface physicochemical heterogeneity. Waste Management 160, 51-58.
  • Herath, P.L., Jayawardana, D. T., Bandara N.J.G.J., 2023, Quantification of Methane and Carbon dioxide emissions from an active landfill: Study the effect of surface conditions on emissions. Environmental Earth Sciences 82, 64.
  • Gunathilake, B.M., Jayawardana, D. T., Pupulewatte P.G.H., Dissanayake N.U.S., 2023. Removal of Methylene Blue in an Aqueous Solution Using Raw Laterite: An Adsorption study. Journal of National Science Foundation Sri Lanka 51, 53-67.
  • Dissanayake N.U.S., Pupulewatte P.G.H., Jayawardana D.T., 2022.Thermally activated laterite soil as an adsorbent for phosphate and fluoride removal from contaminated water. Desalination and Water Treatment 270, 227-235.
  • Dissanayake N.U.S., Pupulewatte P.G.H., Jayawardana D.T., 2022. Formulation and Evaluation of a Laterite Soil Based Scrubbing Effect Herbal Cleansing Bar. Journal of Drug Delivery and Therapeutics 12, 91-96.
  • Dissanayake N.U.S., Pupulewatte P.G.H., Jayawardana D.T., 2022. Characterization of Kaolin-rich Laterite Soil for Applications for the Development of Soil-based Cosmetic Products. Journal of Drug Delivery and Therapeutics 12, 31-40.
  • Goonetilleke, I.A., Subasinghe, H.C.S., Ratnayake, A.S., Jayawardana, D.T., 2021. Acid-assisted leaching of iron and manganese from Sri Lankan laterite: a potential source of alumina production. Journal of National Science Foundation Sri Lanka 49, 303-310.
  • Cooray, P.L.I.G.M., Jayawardana, D.T., Gunathilake, B.M., Pupulewatte, P.G.H., 2021. Characteristics of tropical mangrove soils and relationships with forest structural attributes in the northern coast of Sri Lanka. Regional Studies in Marine Science 44, 101741.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., Eichler, C.M., 2021. An Ecological Risk Assessment of Sediments in a Developing Environment-Batticaloa Lagoon, Sri Lanka. Journal of Marine Science and Engineering 9, 73.
  • Perera, E. N. C., Jayawardana, D. T., Ranagalage Manjula, Dissanayake, D M S L B., Wijenayaka, H. M. D. S., 2020. Introduce a framework for landslide risk assessment using geospatial analysis: a case study from Kegalle District, Sri Lanka. Modeling Earth Systems and Environment 6, 2415-2431.
  • Jayawardana, D.T., Madusanka, R.M.T.D., Jayasinghe, R.M.N.P.K., Adikaram, A.M.N.M., Udagedara, D.T., 2019. Sedimentary geochemistry of alluvial overburden in the primary gem deposit of Pelmadulla, Sri Lanka. Journal of National Science Foundation Sri Lanka 47, 225- 238.
  • Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., Ranagalage, M., 2019. Landslide vulnerability assessment based on entropy method: a case study from Kegalle district, Sri Lanka. Modeling Earth Systems and Environment 5, 1635-1649.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2019. Geochemistry and grain size distribution of surface sediments of a large semienclosed lagoon connected to the western Bay of Bengal. Estuarine, Coastal and Shelf Science 216, 4-13.
  • Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., Bandara, R.M.S., Alahakoon, N., 2018. Direct Impacts of Landslides on Socio-economic System: A Case Study from Aranayake, Sri Lanka. Geoenvironmental Disasters 5, 1-12.
  • Nayanthika, I.V.K., Jayawardana, D.T., Bandara, N.J.G.J., Manage, P.M., Madushanka, R.M.T.D., 2018. Effective use of iron-aluminum rich laterite-based soil mixture for treatment of landfill leachate. Waste Management 74, 347-361.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2017. I–P2O5 diagrams as an indicator of depositional environment in marine sediments: preliminary findings (Sri Lanka). Environmental Earth Sciences 76, 817.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2017. Paleoenvironmental reconstruction using trace-fossil burrows on Quaternary sediments of Eastern Sri Lanka; An Ichnological Study. Journal of Geological Society of India 89, 71-76.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2017. Chemical composition and possible sources of suspended particulate matter in the peripheral environments of Batticaloa lagoon, Sri Lanka. Regional Studies in Marine Science 16, 294-303.
  • Jayawardana, D.T., Udagedara, D.T., Silva, A.A.M.P., Pitawala, H.M.T.G.A., Jayathilaka, W.K.P., Adikaram, A.M.N.M., 2016. Mixing geochemistry of cold water around non-volcanic thermal springs in high-grade metamorphic terrain, Sri Lanka. Chemie der Erde-Geochemistry 76, 555-565.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2017. Spatial distribution, enrichment, and source of environmentally important elements in Batticaloa lagoon, Sri Lanka. Environmental Science and Pollution Research 24, 2089-2099.
  • Udagedara D.T., Jayawardana, D.T., 2015. Assessment of chemical variability in selected major bottled waters of Sri Lanka. Environmental Earth Science 73, 7957-7965.
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2014. Geochemical evidence for the accumulation of vanadium in soils of chronic kidney disease areas in Sri Lanka. Environmental Earth Science 73, 5415-5424.
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2014. Assessment of soil geochemistry around some selected agricultural sites of Sri Lanka. Environmental Earth Science 71, 4097-4106,
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2012. Geochemical assessment of soils in districts of fluoride-rich and fluoride-poor groundwater, north-central Sri Lanka. Journal of Geochemical Exploration 114, 118-125.
  • Jayawardana, D.T., Ishiga, H., Pitawala, H.M.T.G.A., 2012. Geochemistry of surface sediments in tsunami-affected Sri Lankan lagoons regarding environmental implications. International Journal of Environmental Science and Technology 9, 41-55.

Other Journal Publications

  • Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, S., Mapatuna, H., Ravilojan H., 2023. Thermally modified laterite soil by means of an adsorptive material for copper and chromium elimination from polluted water. Chemical and Environmental Science Archives 3, 8-14.
  • Dissanayake, N.U.S., Jayawardana, D.T., Dissanayake, N.U.S., Buddhima, S., Mapatuna, H., Ravilojan H., 2023. Groundwater quality assessment in Anuradhapura district of the dry zone for domestic purposes and the effectiveness of laterite soil-based domestic water filter as an adsorbent. Chemical and Environmental Science Archives 3, 15-23.
  • Buddhima, A.V.P.S., Jayawardana, D. T., Dissanayake, N.U.S., Gunathilake, B.M., Herath, P.L., 2022. Development of a tea waste-based mixture for the removal of fluoride in water: A case study with selected concentrations of fluoride in water. Journal of Sri Lanka Association of Advancement of Science 4, 40-62.
  • Gunathilake, B.M., Jayawardana, D.T., Rathnayake, A.S., Adikaram, A.M.N.M., 2022. Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques. Ruhuna Journal of Science 13, 92-109.
  • Perera, E.N.C., Jayawardana, D.T., Ranagalage, M., 2019. Post Disaster Recovery Process of Landslides in Developing Countries: A Case Study of Aranayake Landslide – Sri Lanka. Review of Environment and Earth Sciences 6, 14-23.
  • Perera, E.N.C., Jayawardana, D.T., Ranagalage, M., 2018. Spatial Multi Criteria Evaluation (SMCE) Model for Landslide Hazard Zonation in Tropical Environment: a case study from Kegalle District, Sri Lanka. Geoinformatics and Geostatistics: An Overview 53.
  • Nayanthika, I.V.K., Jayawardana, D.T., Gunathilake, B.M., 2018. Sorption of Fe ions in aqueous medium by laterite clay: Study of pH dependency. Journal of Geological Society of Sri Lanka 19 (1), 35-46.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Jayawardana, D.T., 2018. Coastal evolution and sediment succession of Sri Lanka: a review on quaternary sea levels, climates and sedimentation processes. Journal of Geological Society of Sri Lanka 19 (2), 1-16.
  • Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., 2017. A rainfall intensity-duration threshold for mass movement in Badulla, Sri Lanka. Journal of Geoscience and Environment Protection 5, 135-152.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2015. Taphonomy of recent burrows from eastern coast, Sri Lanka. Journal of Geological Society of Sri Lanka 17, 11-17.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Jayawardhana, D.T., 2015. Grain Size Characterization of Lagoon-estuarine System: Eastern Coast, Sri Lanka. International Journal of Science and Research 4, 3087-3094.
  • Jayawardana, D.T., Balasooriya, N.W.B., Weerakoon, W.A.P., 2014. Geochemical characteristics of hydrated iron-ore deposit in Dela, Sri Lanka. Journal of Geological Society of Sri Lanka 16, 43-52.
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2012. Geochemical study of arsenic and other trace elements in natural and agricultural soil around the shallow groundwater in Sri Lanka. Tropical Agriculturist 160, 1-19.
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2011. Chemical stability relations of sediments and water in tsunami affected Sri Lankan lagoons and their consequences with groundwater chemistry. Journal of Geological Society of Sri Lanka 14, 74-87.
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2010. Groundwater quality in different climatic zones of Sri Lanka: focus on the occurrence of fluoride. International Journal of Environmental Science and Development 1, 244-250.

Conference Abstract

  • Jayawardana, D.T., 2023. Groundwater Quality Implications from Geology of Sri Lanka: A way forward. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.
  • Gunathilake, B.M., Jayawardana, D.T., Ratnayake, A.S., Adikaram, A.M.N.M., 2023. Paleo-climatic Conditions of Late Jurassic to Early Cretaceous Andigama Gondwana Sediment in Sri Lanka. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.
  • Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, A. V. P. S., Gunathilake, B.M., Membranous Filter with Thermally Activated Laterite Soil-filled for Instantly Removing Ions from Contaminated Water. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.
  • Herath, P.L., Gunathilake, B.M., Jayawardana, D.T., Bandara N.J.G.J., 2023. Diurnal variation pattern of trace gases concentration on landfill surface layer under tropical climatic conditions. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.
  • Rathnayake R.M.U. B., Chandrathilake G.G. T., Jayawardana D.T., Tanaka, N., 2023. A correlation analysis of water quality and habitat types of Kolonnawa Marsh, Colombo, Sri Lanka. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.
  • Kumara, U.I., Jayawardana, D.T., Gunathilake, B.M., 2023. Application of Multispectral Drone for Quantitative Assessment of the Fertilizer Requirement for the Up-country Tea Plantation in Sri Lanka. 27th International Symposium on Forestry and Environmental Science. Sri Jayewardenepura University.
  • Kumara, U.I., Jayawardana, D.T., Gunathilake, B.M., 2023. Spatial and Temporal Assessment of Land Use and Land Cover in Wilpattu National Park Restricted Zone, Sri Lanka. 27th International Symposium on Forestry and Environmental Science. Sri Jayewardenepura University.
  • Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, A. V. P. S., Mapatuna, M. H. L., Gunathilaka, B.M. and Hisho, R., 2023, Evaluation of the Quality of the Groundwater Used for Domestic Purposes in the Anuradhapura District of the Dry Zone and the Efficacy of Laterite soil-based Household Water Filters as adsorbents. In Proceedings of International Forestry and Environment Symposium(Vol. 27).
  • Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, A. V. P. S. and Gunathilaka, B.M., 2023, Membranous Filter with Thermally Activated Laterite Soil-filled for Instantly Removing Ions from Contaminated Water. Japan Society for the Promotion of Science Core-to-Core Symposium (Vol. 3).
  • Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, A.V.P.S., Mapatuna, M.H.L. and Hisho, R., 2022, June. Performance of Thermally Activated Laterite Soil as Adsorbent for the Removal of Chromium and Copper. In Proceedings of International Forestry and Environment Symposium(Vol. 26).
  • Dissanayake, N.U.S., Pupulewatte, P.G.H., Senevirathne, D.M. and Jayawardana, D.T., 2020. Characterisation of Kaoline Rich Laterite Soil for the Development of Soil Based Cosmetic Products. In Proceedings of International Forestry and Environment Symposium(Vol. 25).
  • Dissanayake, N.U.S., Pupulewatte, P.G.H. and Jayawardana, D.T., 2020. Performance of Thermally Activated Laterite Soil as Adsorbent for the Removal of Phosphate and Fluoride. In Proceedings of International Forestry and Environment Symposium(Vol. 25).
  • Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., Ranagalage, M., 2019. A Framework for Assessing the spatial Distribution of Venerability of Communities to Landslides: A Case Study from Kegalle District – Sri Lanka. 7th Conference on Sri Lanka Japan Collaborative Research.
  • Cooray, P.L.I.G.M., Jayawardana, D.T., 2019. Potential of Normalized Difference Vegetation Index Derived from Multispectral Optical Satellite Imagery to Estimate Stand Basal Area and Biomass of Mangroves. International Research Conference of Uwa Wellassa University (IRCUWU).
  • Perera, E.N.C., Jayawardana, D.T., 2018. Scio-economic Risk assessment of Soil Erosion Integrating GIS in Universal Soil Loss Equation: A case Study from Nillambe Catchment, Kandy. Proceedings of the 2nd International Research Symposium of Uva Wellassa University.
  • Hewage, I., Jayawardana, D.T., Udagedara, D.T., 2018. Study of Applicability of Kaolin to Remove Heavy Metals (Cr, Mn, Cu, Fe and Cd) from Textile Sludge. Proceedings of the 1st International Research Symposium of Uva Wellassa University.
  • Goonetilleke, W.A.I.A.T., Jayawardana, D.T., Ratnayake, A.S., 2018. Selective Removal of Iron Oxide in Sri Lankan Laterite. Proceedings of the International Research Symposium of Uva Wellassa University.
  • Madhubhashani, H.G.M.P., Adikaram, A.M.N.M., Jayawardana, D.T., Udagedra, D.T., 2018. Possible Extraction Efficiency of Iron from Laterite Soil at Lower pH: Preliminary Findings. 7th Annual Science Research Sessions, South Eastern University of Sri Lanka.
  • Perera, E.N.C., Jayawardana, D.T., 2018. A rainfall Intensity-duration Threshold for Mass Movements in Tropical Highlands: A Case Study from Badulla District, Sri Lanka. Sri Lanka Associations for the Advancement of Science, Proceedings of the 74th Annual Sessions.
  • Perera, E.N.C., Jayawardana, D.T., 2018. Direct Impacts of Landslides on Sustainable Agroforestry System: A Case Study from Aranayake, Sri Lanka. Sri Lanka Associations for the Advancement of Science, Proceedings of the 74th Annual Sessions.
  • Jayarathne, A.M.H., Jayawardana, D.T., 2018. Development of Activated Iron Oxide Soil Pellets to Study the Filtering Efficiency of Fluoride Ions in Aqueous Fluoride Solutions. 23rd International Symposium on Forestry and Environmental Science.
  • Gunathilake, B.M., Jayawardana, D.T., Nayanthika, I.V.K., 2018. Removal of the Methylene Blue in an Aqueous Solution Using Raw Laterite: Adsorption Studies. 23rd International Symposium on Forestry and Environmental Science.
  • Gallage, H.T., Jayawardana, D.T., 2018. Characteristics of Leachate Infiltration through the Red Earth Profiles: A Laboratory Based Study. 23rd International Symposium on Forestry and Environmental Science.
  • Ekanayake, M., Udayanga, D., Jayawardana, D.T., Manage, P.M., 2018. Effectiveness of Aspergillus aculeatus on Decolorisation of Mixture of Two Different Textile Dye Classes. 23rd International Symposium on Forestry and Environmental Science.
  • Perera, E.N.C., Jayawardana, D.T., 2018. Student Perceptions on the Effect of Geospatial Science Field-based Training to Enhance Student Self-confidence. Joint CETU- SLAIHEE Higher Education Conference.
  • Nayanthika, I.V.K., Jayawardana, D.T., Madusanka, R.M.T.D., 2017. Performance of Landfill Leachate Treatment from Laterite Based Soil-Layering System: A Laboratory Scale Investigation. 22nd International Symposium on Forestry and Environmental Science.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardhana, D.T., Prasadini, K.W., 2017. Bio-geology and Sedimentary Geochemistry: A Case Study in Batticaloa Lagoon, Sri Lanka. Proceedings of the 33rd Technical Sessions of Geological Society of Sri Lanka.
  • Madusanka, R.M.T.D., Jayawardana, D.T., Jayasinghe, R.M.N.P.K., Nayanthika, I.V.K., Raveendrasinghe, S.V.T.D., 2017. Geological Evidences on Mine Gas Emissions of a Selected Alluvial Gem Deposit in Pelmadulla, Sri Lanka. Proceedings of the 33rd Technical Sessions of Geological Society of Sri Lanka.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardhana, D.T., 2016. Heavy Metal Contamination Status in Surface Sediments of Batticaloa Lagoon, Sri Lanka. Proceedings of the 32nd Technical Sessions of Geological Society of Sri Lanka.
  • Madusanka, R.M.T.D., Jayawardana, D.T., Jayasinghe, R.M.N.P.K., 2016. Fourier Transform Infrared (FTIR) Spectroscopic Analysis of Soil Organic Matter in an Alluvial Type Gem Deposit in Pelmadulla, Sri Lanka. 21st International Symposium on Forestry and Environmental Science.
  • Nayanthika, I.V.K., Jayawardana, D.T., 2016. Development of a Laboratory Scale Filter Using Laterite to Treat Landfill Leachate. 21st International Symposium on Forestry and Environmental Science.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2016. Elemental geochemistry of superficial sediments of Batticaloa lagoon, Sri Lanka: Implications for provenance and sedimentary processes. Sri Lanka-Japan Collaborative Research Symposium.
  • Dias, A.A.S.D., Jayawardana, D.T., 2015. Chemical Characteristics of Buffer Zone Sediments and Implications on Adjoining Water in Diyawanna Lake. Proceedings of the 20th International Forestry and Environment Symposium.
  • Prasadi, M.A.D., Jayawardana, D.T., 2015. Mineralogical, Sedimentological and Chemical Relationships of Sediments in Lower Peneplain of the Kelani River. Proceedings of the 20th International Forestry and Environment Symposium.
  • Dilani, P., Jayawardana, D.T., Udagedara, D.T., 2015. Groundwater Contamination in Jaffna Red Beds: Mainly Focused on Nitrate and Trace Elements. Proceedings of the 20th International Forestry and Environment Symposium.
  • Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardhana, D.T., 2015. Occurrence of Trace Fossils in Eastern Coast of Sri Lanka: Implications for Paleoenvironment. Proceedings of the 31st Technical Sessions of Geological Society of Sri Lanka.
  • Wijenayaka, W.N.C., Jayawardhana, D.T., 2015. Groundwater Contamination around in Paddy Terrace in Badulla; special focus on nutrients and tracer element mobility. Proceedings of the Research Symposium of Uva Wellassa University.
  • Rupathasan, N., Udagedra, D.T., Jayawardana, D.T., 2015. Investigation of the effectiveness of Upparu salt barrage in Jaffna peninsula (3rd stage). Proceedings of the Research Symposium of Uva Wellassa University.
  • Premalal, W.A.V., Jayawardhana, D.T., 2015. Effect of Low pH of Groundwater in Rathupaswala Area, Sri Lanka: A Case Study. Proceedings of the Research Symposium of Uva Wellassa University.
  • Wickramsinghe, P.C.B., Udagedra, D.T., Jayawardana, D.T., 2015. Heavy metals and trace element distribution in Eppawala Apatite deposit. Proceedings of the Research Symposium of Uva Wellassa University.
  • Baddevidana R.M., Jayawardana D.T., 2014. Improvement of Drinking Water Quality using Laterite Based Soil Filter. Proceedings of the 19th International Forestry and Environment Symposium.
  • Wickramage, S.U., Jayawardana, D.T., Cooray J.T., 2014. Development of grease product using natural mica in mineral sands. Proceedings of the 19th International Forestry and Environment Symposium.
  • Adikaram, A.M.N.M., Pitawala H.M.T.G.A., Ishiga H. and Jayawardana D.T., 2014. A sedimentary response to recent age sea level changes in eastern coast of Sri Lanka-preliminary findings. PGIS research congress, Peradeniya Sri Lanka.
  • Jayasinghe, E.T.D., Perera, P.K.P., Jayawardena, D.T., Jayakody, A.N., 2014. An Investigation on Spatial Variability of Some Soil parameters of Landscape under Mahogany in Wet Zone of Sri Lanka. 18th International Symposium on Forestry and Environmental Science. Sri Jayewardenepura University.
  • Janajeewa, W.M.C., Cooray J.T., Jayawardana, D.T., 2013. Sedimentological and Mineralogical Investigations of Heavy Mineral Sand Deposits in Mahaweli River   Alluvial Fan. Research Symposium in Uva Wellassa University of Sri Lanka.
  • Suganan, R., Udagedara, D.T., Jayawardana, D.T., 2013. Investigation of the Effectiveness of Salt Barrages in Jaffna Peninsula. Research Symposium in Uva Wellassa University of Sri Lanka.
  • Weerakoon, W.A.P., Balasooriya N.W.B., Jayawardana, D.T., 2013. Structural and Geochemical Characteristics of Limonite ore in Dela Sri Lanka. Research Symposium in Uva Wellassa University of Sri Lanka.
  • Premathilake, D.S., Jayawardana, D.T., 2013. Study of cation exchange properties of selected coastal soils in Sri Lanka with seawater. Research Symposium in Uva Wellassa University of Sri Lanka.
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2012. Geochemical evidences in soil and water leading to chronic renal failure unknown etiology in dry zone Sri Lanka. International Symposium on water quality and human health: challenges ahead. Postgraduate Institute of Science, University of Peradeniya in Collaboration with the Toyama Prefectural University, Japan.
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2011. Trace Element Geochemistry of Soils in Fluoride-rich shallow Groundwater Sites in Sri Lanka. Goldschmidt, Prague, Czech Republic.
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2011. Inferring the chemical and physical parameters of groundwater of some villages in Sri Lanka for the occurrence of fluoride. International Union of Geodesy and Geophysics Conference (IUGG), Melbourne, Australia.
  • Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2010. A comparison of geochemical characteristics of tsunami sediments with rocks, soils and marshy sediments in Sri Lanka. American Geophysical Union (AGU) Fall Meeting, San Francisco, USA.
  • Jayawardana, D.T., Ishiga, H., Pitawala, H.M.T.G.A., 2007. Ground and surface water quality of tsunami affected southwestern coastal area of Sri Lanka. American Geophysical Union (AGU) Fall Meeting, San Francisco, USA.
  • Ranasinghe, S., Jayewardene, D., Priyanthi, R. G. A., 2019. Increase the Turbidity Removal Efficiency in Raw Water Using Different Coagulation Process in Drinking Water Treatment: A Case Study in Water Treatment Plant of Kandana. 24th International Symposium on Forestry and Environmental Science.
  • Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., 2018. Landslide Hazard Assessment in Bulathkohupitiya DS Division-Kegalle District. 5th International Conference on Multidisciplinary Approaches.
  • Jayawardana, D.T., Gunatileke, A.A.J.K.G., 2005. Surface geological and three-dimensional hydrogeological modeling of the Samanalawewa hydropower project in Sri Lanka. National Symposium on Geo-informatics Society, Sri Lanka. (Conference paper).

National Patents

  • A laterite based product to remove dye from an aqueous medium and preparation method thereof – 2021-01-22.
  • A method to treat textile dye contaminated wastewater effluents using the integrated application of laterite soil, microbial consortium and aquatic floating plants – 2021-01-22.
  • A industrial design for the effective dye treatment from laterite soil.
  • A technique for developing a laterite soil-based substrate for use in water purificationas an active ingredient that can purify and increase the overall value of the drinking water (LK/P/1/22306).
  • A method for manufacturing a laterite soil-based substrate for use in skincare and cosmetic products as an active ingredient that can exfoliate, purify and improve the overall quality of the skin (LK/ P / 1 / 22307).

Lecture Programs

Postgraduate 

FEM 101 01   Earth Science (Geology, Soil and Climatology)
FEM 112 02   Geographical Information System and Remote Sensing

Honours Degree 

EMF 467 01   Soil and Soil Conservation
EMF 468 01   Remote Sensing, GIS and Mapping
EMF 472 01   Land Reclamation and Soil Remediation
EMF 478 01   Disaster Management
ASP 478 02    Soil and Its Applications
ARM 412 01  Soil and Geology in Aquatic System

General Degree

EMF 114 01   General Geology and Soil Science
EMF 333 01   Application of GIS in Resource Management

   
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